I have no idea what happened. I used the phome all day for listening to music and the power was at about 50% and then while watching TV I was just moving around checking out a few apps and then it went black and I cant get it back on. I plugged it in to power up but I know it had at least 40% or more of power left. It still refuses to start up. 5 have heard you can hold doen the main power button and the home button simultaneously and it should start up. If I do this will I lose anything in the phone?